Nice, we should put together short term and long term prepping lists to include tested items like this.
I know nothing about HAM radios, I guess this will work anywhere in the world with a limited range?

AC6V's Amateur Radio website, has 30+ areas of interesthttp://www.ac6v.com/
On website: TIP: TO SEARCH THE BIG TABLE BELOW
Type CTRL-F And Enter Key Word
It is likely the largest AR site in the world. If anyone knows of a more complete site, let me know.

Over the past year (Nov 2017 - Nov 2018)
The Technician class has increased at an average rate of 20/day.
The Novice class has decreased at an average rate of 3/day.
The General class has increased at an average rate of 5/day.
The Advanced class has decreased at an average rate of 8/day.
The Extra class has increased at an average rate of 6/day.

I missed that...yes, they will work nearly anywhere with line of sight or repeaters which are like an extension hop spot to increase range/reach. Mountains and certain buildings block signal transmission. Range is limited by power of transmit & receive based on the radio & type antenna used, antennas are all sorts of directional. Repeaters each have different frequencies and are tuned in your ham radio. Band frequencies for ham radio are pretty much the same worldwide. Your license class, the higher you go the more frequencies on each band you're allowed to use to communicate on. Listening while unlicensed, is okay on any bands, just don't push the button to talk (PTT) as that's where they get will you, and they are out to get illegal PTT transmitters
Foxhunters, 2 ham ops will use triangulation to catch illegal use of ham when unlicensed or used out of band for your license class. They can zero in on them fast too. Other hams know, on many ham radios your call sign is picked up when you PTT. Foxhunting is a wicked but fun game, and they will (rat on people) make FCC reports. WHY? They all worked hard for their licenses and it is what supports the entire ham community. It's fair.

What may be different in other countries is police, fire, EMT & aircraft etc band plan frequencies used. Those charts of band's & freqs used elsewhere are found here, if you're interested https://copradar.com/chapts/chapt7/ch7d1.html

Free Study Online for Technician Class Ham Radio License by KY4KY https://www.ky4ky.com/vetesting_materials.htm
There are online teaching guides, guided teaching, self testing, downloadable pools of questions, and available there too. Download those and study 10 to 15 Q's daily. Cycle through the question pool.

Technician Class study is easy easy easy! Lot of FCC laws, small amount of easy electronics & antennas, basics of ham & operating, Tech allowed frequencies on bands.
General Class is moderately hard, some simple electronics knowledge is required. A little more of the above
Extra Class is more difficult, requires more advanced knowledge of how radio circuitry functions in electronics, transmitters & receivers, power and antennas.

The hardest part for me, was learning all the bands & frequencies allowed on each band & SSBs, all were different for the 3 different licenses. FCC Laws are fairly straightforward & easy to learn. I took all three tests in one sitting, 95% 95% and 100%, and was granted Extra Class, but I have a long history of electronics, so that was the easy part.

All licenses also depends on how much knowledge you have already. I would always suggest to study until you understand and have a working knowledge of the concepts presented in the study guides, rather than only memorizing answers. That does not work. You can reach out and ask the hamr's questions, they will answer them gladly.

Basically, the UV-5's are illegal because they are able to operate outside it's range/band/power to cause significant illegal interference in emergency bands. Amherst was or still is being fined at ~$20,000 per day on noncompliance to FCC Rules & Regs, and an added ~$175,000 for ongoing violation.
Before buying Baofeng, must check legitimate ham sites (TWIAR) for easiest to read articles on latest reviews and articles on legality of device.
ARRL basically copied the court case & it is not written in layman's terms.